diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c34111b8d..2397568fe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -43,13 +43,12 @@ variables:
   JWT_SECRET: "CiTestSecret_Kx7mP9nR2sW5vY8bC3fG6jH1kL4pQ7tZ0uN9dM5eV8xS2wT6yA4zB_64chars_min"
   # Training data on block storage PVC (mounted at /mnt/training-data by runner)
   FOXHUNT_DATA_DIR: "/mnt/training-data/futures-baseline"
-  # sccache backed by MinIO S3 — shared across all nodes (no PVC needed)
+  # sccache backed by MinIO S3 (HTTP) — shared across all nodes (no PVC needed)
   SCCACHE_BUCKET: foxhunt-sccache
-  SCCACHE_ENDPOINT: https://minio.foxhunt.svc.cluster.local:9000/
+  SCCACHE_ENDPOINT: http://minio.foxhunt.svc.cluster.local:9000
   SCCACHE_S3_KEY_PREFIX: cpu
-  SCCACHE_S3_USE_SSL: "true"
-  SCCACHE_S3_NO_CREDENTIALS: ""
-  SCCACHE_NO_CERT_VERIFICATION: "true"
+  SCCACHE_S3_USE_SSL: "false"
+  SCCACHE_S3_NO_CREDENTIALS: "false"
   RUSTC_WRAPPER: /usr/local/bin/sccache
   # Build profile: "dev-release" (thin LTO, fast) is default for quick iteration
   # Set DEV_RELEASE=false in pipeline vars to use full "release" (fat LTO) profile
@@ -727,11 +726,10 @@ build-web-dashboard:
         echo "Fetching training binaries from MinIO..."
         rclone copy :s3:foxhunt-binaries/training/ ${CI_PROJECT_DIR}/training-bin/ \
           --s3-provider=Minio \
-          --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+          --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
           --s3-access-key-id="${MINIO_ACCESS_KEY}" \
           --s3-secret-access-key="${MINIO_SECRET_KEY}" \
           --s3-no-check-bucket \
-          --no-check-certificate
         echo "Fetched $(ls ${CI_PROJECT_DIR}/training-bin/ | wc -l) training binaries from MinIO"
       fi
     - chmod +x ${CI_PROJECT_DIR}/training-bin/* 2>/dev/null || true
@@ -783,11 +781,10 @@ build-web-dashboard:
         echo "Fetching training binaries from MinIO..."
         rclone copy :s3:foxhunt-binaries/training/ ${CI_PROJECT_DIR}/training-bin/ \
           --s3-provider=Minio \
-          --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+          --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
           --s3-access-key-id="${MINIO_ACCESS_KEY}" \
           --s3-secret-access-key="${MINIO_SECRET_KEY}" \
           --s3-no-check-bucket \
-          --no-check-certificate
         echo "Fetched $(ls ${CI_PROJECT_DIR}/training-bin/ | wc -l) training binaries from MinIO"
       fi
     - chmod +x ${CI_PROJECT_DIR}/training-bin/* 2>/dev/null || true
@@ -1617,7 +1614,7 @@ infra-drift-check:
   script:
     - export AWS_ACCESS_KEY_ID="${MINIO_ACCESS_KEY}"
     - export AWS_SECRET_ACCESS_KEY="${MINIO_SECRET_KEY}"
-    - S3="aws s3 --endpoint-url https://minio.foxhunt.svc.cluster.local:9000 --no-verify-ssl"
+    - S3="aws s3 --endpoint-url http://minio.foxhunt.svc.cluster.local:9000"
     - echo "Deploying ${SERVICE_PACKAGE}..."
     - $S3 cp build-out/services/${SERVICE_PACKAGE} s3://foxhunt-binaries/services/${SERVICE_PACKAGE}
     - kubectl apply -f infra/k8s/services/${SERVICE_PACKAGE}.yaml
@@ -1704,7 +1701,7 @@ deploy-training:
   script:
     - export AWS_ACCESS_KEY_ID="${MINIO_ACCESS_KEY}"
     - export AWS_SECRET_ACCESS_KEY="${MINIO_SECRET_KEY}"
-    - S3="aws s3 --endpoint-url https://minio.foxhunt.svc.cluster.local:9000 --no-verify-ssl"
+    - S3="aws s3 --endpoint-url http://minio.foxhunt.svc.cluster.local:9000"
     - $S3 cp build-out/training/ s3://foxhunt-binaries/training/ --recursive
     - echo "Training binaries uploaded to MinIO"
 
@@ -1724,7 +1721,7 @@ deploy-web-dashboard:
   script:
     - export AWS_ACCESS_KEY_ID="${MINIO_ACCESS_KEY}"
     - export AWS_SECRET_ACCESS_KEY="${MINIO_SECRET_KEY}"
-    - S3="aws s3 --endpoint-url https://minio.foxhunt.svc.cluster.local:9000 --no-verify-ssl"
+    - S3="aws s3 --endpoint-url http://minio.foxhunt.svc.cluster.local:9000"
     - $S3 cp web-dashboard/dist/ s3://foxhunt-binaries/static/ --recursive
     - echo "Web dashboard assets uploaded to MinIO"
 
diff --git a/infra/k8s/argo/ci-pipeline-template.yaml b/infra/k8s/argo/ci-pipeline-template.yaml
index 07b2ea03a..856cb3691 100644
--- a/infra/k8s/argo/ci-pipeline-template.yaml
+++ b/infra/k8s/argo/ci-pipeline-template.yaml
@@ -30,9 +30,6 @@ spec:
         items:
           - key: .dockerconfigjson
             path: config.json
-    - name: minio-ca-cert
-      configMap:
-        name: minio-ca-cert
   arguments:
     parameters:
       - name: commit-sha
@@ -261,14 +258,9 @@ spec:
           - name: git-ssh-key
             mountPath: /etc/git-ssh
             readOnly: true
-          - name: minio-ca-cert
-            mountPath: /etc/ssl/minio-ca
-            readOnly: true
         args:
           - |
             set -e
-            cat /etc/ssl/minio-ca/ca.crt >> /etc/ssl/certs/ca-certificates.crt
-
             SHA="{{workflow.parameters.commit-sha}}"
 
             # Git clone
@@ -298,11 +290,10 @@ spec:
             echo "=== Uploading to MinIO ==="
             rclone copy dist/ :s3:foxhunt-binaries/web-dashboard/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-              --s3-no-check-bucket \
-              --no-check-certificate
+              --s3-no-check-bucket
 
             echo "=== Web dashboard build + upload done ==="
 
@@ -327,13 +318,13 @@ spec:
           - name: SCCACHE_BUCKET
             value: foxhunt-sccache
           - name: SCCACHE_ENDPOINT
-            value: https://minio.foxhunt.svc.cluster.local:9000/
+            value: http://minio.foxhunt.svc.cluster.local:9000
           - name: SCCACHE_REGION
             value: us-east-1
           - name: SCCACHE_S3_KEY_PREFIX
             value: cpu
           - name: SCCACHE_S3_USE_SSL
-            value: "true"
+            value: "false"
           - name: SCCACHE_S3_NO_CREDENTIALS
             value: "false"
           - name: AWS_ACCESS_KEY_ID
@@ -367,15 +358,9 @@ spec:
           - name: git-ssh-key
             mountPath: /etc/git-ssh
             readOnly: true
-          - name: minio-ca-cert
-            mountPath: /etc/ssl/minio-ca
-            readOnly: true
         args:
           - |
             set -e
-            # Trust MinIO self-signed CA
-            cat /etc/ssl/minio-ca/ca.crt >> /etc/ssl/certs/ca-certificates.crt
-
             SHA="{{workflow.parameters.commit-sha}}"
 
             # Git clone (self-contained)
@@ -426,11 +411,10 @@ spec:
             echo "=== Uploading service binaries ==="
             rclone copy "$WORKSPACE/bin/services/" :s3:foxhunt-binaries/services/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-              --s3-no-check-bucket \
-              --no-check-certificate
+              --s3-no-check-bucket
 
             echo "=== Service compile + upload done ==="
 
@@ -455,11 +439,11 @@ spec:
           - name: SCCACHE_BUCKET
             value: foxhunt-sccache
           - name: SCCACHE_ENDPOINT
-            value: https://minio.foxhunt.svc.cluster.local:9000/
+            value: http://minio.foxhunt.svc.cluster.local:9000
           - name: SCCACHE_REGION
             value: us-east-1
           - name: SCCACHE_S3_USE_SSL
-            value: "true"
+            value: "false"
           - name: SCCACHE_S3_NO_CREDENTIALS
             value: "false"
           - name: AWS_ACCESS_KEY_ID
@@ -493,15 +477,9 @@ spec:
           - name: git-ssh-key
             mountPath: /etc/git-ssh
             readOnly: true
-          - name: minio-ca-cert
-            mountPath: /etc/ssl/minio-ca
-            readOnly: true
         args:
           - |
             set -e
-            # Trust MinIO self-signed CA
-            cat /etc/ssl/minio-ca/ca.crt >> /etc/ssl/certs/ca-certificates.crt
-
             SHA="{{workflow.parameters.commit-sha}}"
 
             # Git clone (self-contained — ephemeral node)
@@ -554,11 +532,10 @@ spec:
             echo "=== Uploading training binaries ==="
             rclone copy "$WORKSPACE/bin/training/" :s3:foxhunt-binaries/training/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-              --s3-no-check-bucket \
-              --no-check-certificate
+              --s3-no-check-bucket
 
             echo "=== Training compile + upload done ==="
 
diff --git a/infra/k8s/argo/training-workflow-template.yaml b/infra/k8s/argo/training-workflow-template.yaml
index 1c00bc220..54c3fdadf 100644
--- a/infra/k8s/argo/training-workflow-template.yaml
+++ b/infra/k8s/argo/training-workflow-template.yaml
@@ -128,11 +128,10 @@ spec:
             echo "Fetching training binaries from MinIO..."
             rclone copy :s3:foxhunt-binaries/training/ /workspace/bin/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate
             chmod +x /workspace/bin/*
             echo "Fetched binaries:"
             ls -lh /workspace/bin/
@@ -183,11 +182,10 @@ spec:
             echo "=== Downloading training data from MinIO ==="
             rclone copy :s3:foxhunt-training-data/futures-baseline/ /tmp/futures-baseline/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate \
               --transfers=8
             echo "Training data: $(find /tmp/futures-baseline -name '*.dbn.zst' | wc -l) files"
 
@@ -280,11 +278,10 @@ spec:
             echo "=== Downloading training data from MinIO ==="
             rclone copy :s3:foxhunt-training-data/futures-baseline/ /tmp/futures-baseline/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate \
               --transfers=8
             echo "Training data: $(find /tmp/futures-baseline -name '*.dbn.zst' | wc -l) files"
 
@@ -371,11 +368,10 @@ spec:
             echo "=== Downloading training data from MinIO ==="
             rclone copy :s3:foxhunt-training-data/futures-baseline/ /tmp/futures-baseline/ \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate \
               --transfers=8
 
             MODEL="{{workflow.parameters.model}}"
@@ -448,20 +444,18 @@ spec:
             echo "  checkpoints (*.safetensors), norm stats, hyperopt results, eval reports"
             rclone copy /workspace/output/ ":${DEST}" \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate
 
             echo "=== Upload complete ==="
             rclone ls ":${DEST}" \
               --s3-provider=Minio \
-              --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+              --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
               --s3-access-key-id="${MINIO_ACCESS_KEY}" \
               --s3-secret-access-key="${MINIO_SECRET_KEY}" \
               --s3-no-check-bucket \
-              --no-check-certificate
         env:
           - name: MINIO_ACCESS_KEY
             valueFrom:
diff --git a/infra/k8s/gitlab/runner-values.yaml b/infra/k8s/gitlab/runner-values.yaml
index 078322f72..408aed731 100644
--- a/infra/k8s/gitlab/runner-values.yaml
+++ b/infra/k8s/gitlab/runner-values.yaml
@@ -63,11 +63,6 @@ runners:
         name = "training-data-pvc"
         mount_path = "/mnt/training-data"
         read_only = true
-      # MinIO CA cert for HTTPS S3 access (rclone uses RCLONE_CA_CERT env)
-      [[runners.kubernetes.volumes.config_map]]
-        name = "minio-ca-cert"
-        mount_path = "/etc/ssl/minio-ca"
-        read_only = true
 
   # Runner tags for job matching
   tags: "kapsule,rust,docker,gpu"
diff --git a/infra/k8s/gitlab/tailscale-proxy.yaml b/infra/k8s/gitlab/tailscale-proxy.yaml
index 940737644..d866488fa 100644
--- a/infra/k8s/gitlab/tailscale-proxy.yaml
+++ b/infra/k8s/gitlab/tailscale-proxy.yaml
@@ -269,7 +269,7 @@ data:
         client_max_body_size 0;
 
         location / {
-            proxy_pass https://minio.foxhunt.svc.cluster.local:9000;
+            proxy_pass http://minio.foxhunt.svc.cluster.local:9000;
             proxy_set_header Host $http_host;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
diff --git a/infra/k8s/gpu-overlays/ml-training-service-gpu.yaml b/infra/k8s/gpu-overlays/ml-training-service-gpu.yaml
index 4e31ab100..2650bad28 100644
--- a/infra/k8s/gpu-overlays/ml-training-service-gpu.yaml
+++ b/infra/k8s/gpu-overlays/ml-training-service-gpu.yaml
@@ -58,11 +58,10 @@ spec:
                 ":s3:foxhunt-binaries/services/ml-training-service" \
                 "/binaries/ml-training-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/ml-training-service
               echo "Fetched ml-training-service ($(stat -c%s /binaries/ml-training-service) bytes)"
           env:
@@ -120,11 +119,9 @@ spec:
             - name: JWT_AUDIENCE
               value: foxhunt-services
             - name: S3_ENDPOINT
-              value: "https://minio.foxhunt.svc.cluster.local:9000"
+              value: "http://minio.foxhunt.svc.cluster.local:9000"
             - name: S3_BUCKET
               value: foxhunt-models
-            - name: MINIO_CA_CERT_PATH
-              value: /etc/ssl/minio-ca/ca.crt
             - name: ENABLE_GPU
               value: "true"
             - name: RUST_LOG
@@ -138,9 +135,6 @@ spec:
             - name: tls-certs
               mountPath: /app/certs/ml-training-service
               readOnly: true
-            - name: minio-ca
-              mountPath: /etc/ssl/minio-ca
-              readOnly: true
             - name: tmp
               mountPath: /tmp
           readinessProbe:
@@ -170,9 +164,6 @@ spec:
         - name: tls-certs
           secret:
             secretName: ml-training-tls
-        - name: minio-ca
-          configMap:
-            name: minio-ca-cert
         - name: tmp
           emptyDir:
             sizeLimit: 50Mi
diff --git a/infra/k8s/gpu-overlays/trading-service-gpu.yaml b/infra/k8s/gpu-overlays/trading-service-gpu.yaml
index 1806ac817..52dcf2ed1 100644
--- a/infra/k8s/gpu-overlays/trading-service-gpu.yaml
+++ b/infra/k8s/gpu-overlays/trading-service-gpu.yaml
@@ -39,7 +39,7 @@ spec:
         seccompProfile:
           type: RuntimeDefault
       nodeSelector:
-        k8s.scaleway.com/pool-name: gpu-inference
+        k8s.scaleway.com/pool-name: l40s
       tolerations:
         - key: nvidia.com/gpu
           operator: Exists
@@ -57,11 +57,10 @@ spec:
                 ":s3:foxhunt-binaries/services/trading-service" \
                 "/binaries/trading-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/trading-service
               echo "Fetched trading-service ($(stat -c%s /binaries/trading-service) bytes)"
           env:
diff --git a/infra/k8s/minio/minio.yaml b/infra/k8s/minio/minio.yaml
index 673d0e1a0..e9ca047ab 100644
--- a/infra/k8s/minio/minio.yaml
+++ b/infra/k8s/minio/minio.yaml
@@ -1,5 +1,6 @@
 # MinIO — in-cluster S3 for compiled binaries and trained models
 # Replaces Scaleway public S3 to keep proprietary code/IP in-cluster
+# Plain HTTP only — internal cluster traffic, no TLS needed
 apiVersion: v1
 kind: Secret
 metadata:
@@ -30,7 +31,7 @@ spec:
   storageClassName: scw-bssd
   resources:
     requests:
-      storage: 20Gi
+      storage: 100Gi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -54,7 +55,7 @@ spec:
         app.kubernetes.io/part-of: foxhunt
     spec:
       nodeSelector:
-        k8s.scaleway.com/pool-name: infra
+        k8s.scaleway.com/pool-name: platform
       containers:
         - name: minio
           image: minio/minio:latest
@@ -78,16 +79,15 @@ spec:
           volumeMounts:
             - name: data
               mountPath: /data
-            - name: tls-certs
-              mountPath: /root/.minio/certs
-              readOnly: true
           readinessProbe:
-            tcpSocket:
+            httpGet:
+              path: /minio/health/live
               port: 9000
             initialDelaySeconds: 5
             periodSeconds: 10
           livenessProbe:
-            tcpSocket:
+            httpGet:
+              path: /minio/health/live
               port: 9000
             initialDelaySeconds: 10
             periodSeconds: 15
@@ -103,14 +103,6 @@ spec:
         - name: data
           persistentVolumeClaim:
             claimName: minio-data-new
-        - name: tls-certs
-          secret:
-            secretName: minio-tls
-            items:
-              - key: tls.crt
-                path: public.crt
-              - key: tls.key
-                path: private.key
 ---
 apiVersion: v1
 kind: Service
@@ -149,7 +141,7 @@ spec:
         app.kubernetes.io/name: minio-init
     spec:
       nodeSelector:
-        k8s.scaleway.com/pool-name: infra
+        k8s.scaleway.com/pool-name: platform
       restartPolicy: OnFailure
       containers:
         - name: mc
@@ -158,11 +150,8 @@ spec:
           args:
             - |
               set -e
-              # mc trusts CAs placed in ~/.mc/certs/CAs/
-              mkdir -p /root/.mc/certs/CAs
-              cp /etc/ssl/minio-ca/ca.crt /root/.mc/certs/CAs/minio-ca.crt
               echo "Waiting for MinIO to be ready..."
-              until mc alias set foxhunt https://minio.foxhunt.svc.cluster.local:9000 "$MINIO_ROOT_USER" "$MINIO_ROOT_PASSWORD" 2>/dev/null; do
+              until mc alias set foxhunt http://minio.foxhunt.svc.cluster.local:9000 "$MINIO_ROOT_USER" "$MINIO_ROOT_PASSWORD" 2>/dev/null; do
                 echo "MinIO not ready, retrying in 3s..."
                 sleep 3
               done
@@ -170,6 +159,8 @@ spec:
               mc mb --ignore-existing foxhunt/foxhunt-binaries
               mc mb --ignore-existing foxhunt/foxhunt-models
               mc mb --ignore-existing foxhunt/foxhunt-training-results
+              mc mb --ignore-existing foxhunt/foxhunt-sccache
+              mc mb --ignore-existing foxhunt/foxhunt-training-data
               echo "Buckets created:"
               mc ls foxhunt/
           env:
@@ -183,10 +174,6 @@ spec:
                 secretKeyRef:
                   name: minio-credentials
                   key: root-password
-          volumeMounts:
-            - name: ca-cert
-              mountPath: /etc/ssl/minio-ca
-              readOnly: true
           resources:
             requests:
               cpu: 50m
@@ -194,7 +181,3 @@ spec:
             limits:
               cpu: 200m
               memory: 64Mi
-      volumes:
-        - name: ca-cert
-          configMap:
-            name: minio-ca-cert
diff --git a/infra/k8s/services/api.yaml b/infra/k8s/services/api.yaml
index 9d6dda1f0..55d439c8e 100644
--- a/infra/k8s/services/api.yaml
+++ b/infra/k8s/services/api.yaml
@@ -37,7 +37,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -49,11 +49,10 @@ spec:
                 ":s3:foxhunt-binaries/services/api" \
                 "/binaries/api" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/api
               echo "Fetched api ($(stat -c%s /binaries/api) bytes)"
           env:
diff --git a/infra/k8s/services/backtesting-service.yaml b/infra/k8s/services/backtesting-service.yaml
index e0c1a0377..c261d2645 100644
--- a/infra/k8s/services/backtesting-service.yaml
+++ b/infra/k8s/services/backtesting-service.yaml
@@ -36,7 +36,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -48,11 +48,10 @@ spec:
                 ":s3:foxhunt-binaries/services/backtesting-service" \
                 "/binaries/backtesting-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/backtesting-service
               echo "Fetched backtesting-service ($(stat -c%s /binaries/backtesting-service) bytes)"
           env:
diff --git a/infra/k8s/services/broker-gateway.yaml b/infra/k8s/services/broker-gateway.yaml
index d629ae9ca..ead15a5fe 100644
--- a/infra/k8s/services/broker-gateway.yaml
+++ b/infra/k8s/services/broker-gateway.yaml
@@ -36,7 +36,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -48,11 +48,10 @@ spec:
                 ":s3:foxhunt-binaries/services/broker-gateway" \
                 "/binaries/broker-gateway" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/broker-gateway
               echo "Fetched broker-gateway ($(stat -c%s /binaries/broker-gateway) bytes)"
           env:
diff --git a/infra/k8s/services/data-acquisition-service.yaml b/infra/k8s/services/data-acquisition-service.yaml
index 682d34445..9413c2803 100644
--- a/infra/k8s/services/data-acquisition-service.yaml
+++ b/infra/k8s/services/data-acquisition-service.yaml
@@ -36,7 +36,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -48,11 +48,10 @@ spec:
                 ":s3:foxhunt-binaries/services/data-acquisition-service" \
                 "/binaries/data-acquisition-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/data-acquisition-service
               echo "Fetched data-acquisition-service ($(stat -c%s /binaries/data-acquisition-service) bytes)"
           env:
diff --git a/infra/k8s/services/ib-gateway.yaml b/infra/k8s/services/ib-gateway.yaml
index 4235d4a08..670fc892f 100644
--- a/infra/k8s/services/ib-gateway.yaml
+++ b/infra/k8s/services/ib-gateway.yaml
@@ -25,7 +25,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       containers:
         - name: ib-gateway
           image: ghcr.io/gnzsnz/ib-gateway:stable
diff --git a/infra/k8s/services/ml-training-service.yaml b/infra/k8s/services/ml-training-service.yaml
index f7a314758..5749cc1a3 100644
--- a/infra/k8s/services/ml-training-service.yaml
+++ b/infra/k8s/services/ml-training-service.yaml
@@ -79,7 +79,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -91,11 +91,10 @@ spec:
                 ":s3:foxhunt-binaries/services/ml-training-service" \
                 "/binaries/ml-training-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/ml-training-service
               echo "Fetched ml-training-service ($(stat -c%s /binaries/ml-training-service) bytes)"
           env:
@@ -153,11 +152,9 @@ spec:
             - name: JWT_AUDIENCE
               value: foxhunt-services
             - name: S3_ENDPOINT
-              value: "https://minio.foxhunt.svc.cluster.local:9000"
+              value: "http://minio.foxhunt.svc.cluster.local:9000"
             - name: S3_BUCKET
               value: foxhunt-models
-            - name: MINIO_CA_CERT_PATH
-              value: /etc/ssl/minio-ca/ca.crt
             - name: AWS_ACCESS_KEY_ID
               valueFrom:
                 secretKeyRef:
@@ -181,9 +178,6 @@ spec:
             - name: tls-certs
               mountPath: /app/certs/ml_training_service
               readOnly: true
-            - name: minio-ca
-              mountPath: /etc/ssl/minio-ca
-              readOnly: true
             - name: tmp
               mountPath: /tmp
           readinessProbe:
@@ -211,9 +205,6 @@ spec:
         - name: tls-certs
           secret:
             secretName: ml-training-tls
-        - name: minio-ca
-          configMap:
-            name: minio-ca-cert
         - name: tmp
           emptyDir:
             sizeLimit: 50Mi
diff --git a/infra/k8s/services/trading-agent-service.yaml b/infra/k8s/services/trading-agent-service.yaml
index 6f0327375..8cac12bed 100644
--- a/infra/k8s/services/trading-agent-service.yaml
+++ b/infra/k8s/services/trading-agent-service.yaml
@@ -36,7 +36,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -48,11 +48,10 @@ spec:
                 ":s3:foxhunt-binaries/services/trading-agent-service" \
                 "/binaries/trading-agent-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/trading-agent-service
               echo "Fetched trading-agent-service ($(stat -c%s /binaries/trading-agent-service) bytes)"
           env:
diff --git a/infra/k8s/services/trading-service.yaml b/infra/k8s/services/trading-service.yaml
index 20a247bd5..1e721735e 100644
--- a/infra/k8s/services/trading-service.yaml
+++ b/infra/k8s/services/trading-service.yaml
@@ -36,7 +36,7 @@ spec:
       imagePullSecrets:
         - name: gitlab-registry
       nodeSelector:
-        k8s.scaleway.com/pool-name: foxhunt
+        k8s.scaleway.com/pool-name: platform
       initContainers:
         - name: fetch-binary
           image: gitlab-registry.foxhunt.svc.cluster.local:5000/root/foxhunt/foxhunt-runtime:latest
@@ -48,11 +48,10 @@ spec:
                 ":s3:foxhunt-binaries/services/trading-service" \
                 "/binaries/trading-service" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               chmod +x /binaries/trading-service
               echo "Fetched trading-service ($(stat -c%s /binaries/trading-service) bytes)"
           env:
diff --git a/infra/k8s/services/web-dashboard.yaml b/infra/k8s/services/web-dashboard.yaml
index 8031227c9..ebd958162 100644
--- a/infra/k8s/services/web-dashboard.yaml
+++ b/infra/k8s/services/web-dashboard.yaml
@@ -37,11 +37,10 @@ spec:
                 ":s3:foxhunt-binaries/web-dashboard/" \
                 "/usr/share/nginx/html/" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
-                --s3-no-check-bucket \
-                --no-check-certificate
+                --s3-no-check-bucket
               echo "Fetched web-dashboard assets ($(find /usr/share/nginx/html -type f | wc -l) files)"
           env:
             - name: MINIO_ACCESS_KEY
diff --git a/infra/k8s/training/job-template.yaml b/infra/k8s/training/job-template.yaml
index 118e8aa69..5febf44fa 100644
--- a/infra/k8s/training/job-template.yaml
+++ b/infra/k8s/training/job-template.yaml
@@ -47,11 +47,10 @@ spec:
                 ":s3:foxhunt-binaries/training/$(TRAINING_BINARY)" \
                 "/binaries/$(TRAINING_BINARY)" \
                 --s3-provider=Minio \
-                --s3-endpoint=https://minio.foxhunt.svc.cluster.local:9000 \
+                --s3-endpoint=http://minio.foxhunt.svc.cluster.local:9000 \
                 --s3-access-key-id="${MINIO_ACCESS_KEY}" \
                 --s3-secret-access-key="${MINIO_SECRET_KEY}" \
                 --s3-no-check-bucket \
-                --no-check-certificate
               chmod +x "/binaries/$(TRAINING_BINARY)"
               echo "Fetched $(TRAINING_BINARY) ($(stat -c%s /binaries/$(TRAINING_BINARY)) bytes)"
           env:
diff --git a/infra/scripts/train.sh b/infra/scripts/train.sh
index 159df3420..540875f51 100755
--- a/infra/scripts/train.sh
+++ b/infra/scripts/train.sh
@@ -27,7 +27,7 @@ MODEL=""
 PRESET=""
 TIMESTAMP="$(date +%s)"
 S3_BUCKET="foxhunt-models"
-MINIO_ENDPOINT="https://minio.foxhunt.svc.cluster.local:9000"
+MINIO_ENDPOINT="http://minio.foxhunt.svc.cluster.local:9000"
 RUN_ID="$(date +%Y%m%d-%H%M%S)"
 
 ALL_MODELS=(dqn ppo tft mamba2 tggn tlob liquid kan xlstm diffusion)
@@ -203,7 +203,6 @@ spec:
               RCLONE_CONFIG_MINIO_SECRET_ACCESS_KEY=\$(cat /secrets/secret-key) \\
               RCLONE_CONFIG_MINIO_ENDPOINT=${MINIO_ENDPOINT} \\
               RCLONE_CONFIG_MINIO_REGION=us-east-1 \\
-              RCLONE_CA_CERT=/etc/ssl/minio-ca/ca.crt \\
                 rclone sync /output/ "minio:${S3_BUCKET}/runs/${RUN_ID}/${model}/" -v
               echo "=== Output synced to minio://${S3_BUCKET}/runs/${RUN_ID}/${model}/ ==="
           env:
@@ -229,9 +228,6 @@ spec:
             - name: minio-credentials
               mountPath: /secrets
               readOnly: true
-            - name: minio-ca
-              mountPath: /etc/ssl/minio-ca
-              readOnly: true
       volumes:
         - name: training-data
           persistentVolumeClaim:
@@ -241,9 +237,6 @@ spec:
         - name: minio-credentials
           secret:
             secretName: minio-credentials
-        - name: minio-ca
-          configMap:
-            name: minio-ca-cert
 EOF
 }
 
@@ -293,7 +286,6 @@ spec:
               RCLONE_CONFIG_MINIO_SECRET_ACCESS_KEY=\$(cat /secrets/secret-key) \\
               RCLONE_CONFIG_MINIO_ENDPOINT=${MINIO_ENDPOINT} \\
               RCLONE_CONFIG_MINIO_REGION=us-east-1 \\
-              RCLONE_CA_CERT=/etc/ssl/minio-ca/ca.crt \\
                 rclone sync "minio:${S3_BUCKET}/runs/${RUN_ID}/" /output/models/ -v
               echo "=== Running evaluation ==="
               ${EVAL_BINARY} --model both \\
@@ -306,7 +298,6 @@ spec:
               RCLONE_CONFIG_MINIO_SECRET_ACCESS_KEY=\$(cat /secrets/secret-key) \\
               RCLONE_CONFIG_MINIO_ENDPOINT=${MINIO_ENDPOINT} \\
               RCLONE_CONFIG_MINIO_REGION=us-east-1 \\
-              RCLONE_CA_CERT=/etc/ssl/minio-ca/ca.crt \\
                 rclone sync /output/ "minio:${S3_BUCKET}/runs/${RUN_ID}/eval/" -v
               echo "=== Done ==="
           env:
@@ -332,9 +323,6 @@ spec:
             - name: minio-credentials
               mountPath: /secrets
               readOnly: true
-            - name: minio-ca
-              mountPath: /etc/ssl/minio-ca
-              readOnly: true
       volumes:
         - name: training-data
           persistentVolumeClaim:
@@ -344,9 +332,6 @@ spec:
         - name: minio-credentials
           secret:
             secretName: minio-credentials
-        - name: minio-ca
-          configMap:
-            name: minio-ca-cert
 EOF
 }
 
diff --git a/services/ml_training_service/src/k8s_dispatcher.rs b/services/ml_training_service/src/k8s_dispatcher.rs
index 453e0756a..5cba98904 100644
--- a/services/ml_training_service/src/k8s_dispatcher.rs
+++ b/services/ml_training_service/src/k8s_dispatcher.rs
@@ -9,7 +9,7 @@ use std::collections::BTreeMap;
 use anyhow::{Context, Result};
 use k8s_openapi::api::batch::v1::{Job, JobSpec};
 use k8s_openapi::api::core::v1::{
-    ConfigMapVolumeSource, Container, EmptyDirVolumeSource, EnvFromSource, EnvVar,
+    Container, EmptyDirVolumeSource, EnvFromSource, EnvVar,
     LocalObjectReference, PersistentVolumeClaimVolumeSource, PodSpec, PodTemplateSpec,
     ResourceRequirements, SecretEnvSource, SecurityContext, Toleration, Volume, VolumeMount,
 };
@@ -46,24 +46,27 @@ impl Default for DispatcherConfig {
 }
 
 impl DispatcherConfig {
-    /// Reads configuration from environment variables, falling back to sensible defaults.
+    /// Reads configuration from environment variables.
+    ///
+    /// Required env vars: S3_ENDPOINT, TRAINING_RUNTIME_IMAGE, CALLBACK_ENDPOINT.
+    /// Falls back to defaults only for non-URL values (namespace, bucket names, PVC names).
     pub fn from_env() -> Self {
         Self {
             namespace: std::env::var("K8S_NAMESPACE").unwrap_or_else(|_| "foxhunt".to_string()),
-            runtime_image: std::env::var("TRAINING_RUNTIME_IMAGE").unwrap_or_else(|_| {
-                "foxhunt-training-runtime:latest".to_string()
-            }),
-            data_pvc: "training-data-pvc".to_string(),
+            runtime_image: std::env::var("TRAINING_RUNTIME_IMAGE")
+                .expect("TRAINING_RUNTIME_IMAGE env var required"),
+            data_pvc: std::env::var("TRAINING_DATA_PVC")
+                .unwrap_or_else(|_| "training-data-pvc".to_string()),
             s3_bucket: std::env::var("S3_BUCKET")
                 .unwrap_or_else(|_| "foxhunt-models".to_string()),
             s3_endpoint: std::env::var("S3_ENDPOINT")
-                .unwrap_or_else(|_| "https://minio.foxhunt.svc.cluster.local:9000".to_string()),
-            s3_region: "fr-par".to_string(),
+                .expect("S3_ENDPOINT env var required"),
+            s3_region: std::env::var("S3_REGION")
+                .unwrap_or_else(|_| "fr-par".to_string()),
             binaries_bucket: std::env::var("BINARIES_BUCKET")
                 .unwrap_or_else(|_| "foxhunt-binaries".to_string()),
-            callback_endpoint: std::env::var("CALLBACK_ENDPOINT").unwrap_or_else(|_| {
-                "http://ml-training-service.foxhunt.svc.cluster.local:50053".to_string()
-            }),
+            callback_endpoint: std::env::var("CALLBACK_ENDPOINT")
+                .expect("CALLBACK_ENDPOINT env var required"),
         }
     }
 }
@@ -237,7 +240,7 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
         command: Some(vec!["/bin/sh".to_string(), "-c".to_string()]),
         args: Some(vec![format!(
             "set -e\n\
-             export RCLONE_S3_PROVIDER=Minio RCLONE_S3_ENDPOINT=minio.foxhunt.svc.cluster.local:9000 RCLONE_S3_REGION=fr-par RCLONE_CA_CERT=/etc/ssl/minio-ca/ca.crt\n\
+             export RCLONE_S3_PROVIDER=Minio RCLONE_S3_ENDPOINT=$S3_ENDPOINT RCLONE_S3_REGION=$S3_REGION\n\
              rclone sync :s3:{}/latest/training/ /binaries/\n\
              chmod +x /binaries/*\n\
              ls -lh /binaries/\n\
@@ -245,6 +248,8 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
             config.binaries_bucket
         )]),
         env: Some(vec![
+            env_var("S3_ENDPOINT", &config.s3_endpoint),
+            env_var("S3_REGION", &config.s3_region),
             EnvVar {
                 name: "RCLONE_S3_ACCESS_KEY_ID".to_string(),
                 value_from: Some(k8s_openapi::api::core::v1::EnvVarSource {
@@ -276,12 +281,6 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
                 mount_path: "/binaries".to_string(),
                 ..Default::default()
             },
-            VolumeMount {
-                name: "minio-ca".to_string(),
-                mount_path: "/etc/ssl/minio-ca".to_string(),
-                read_only: Some(true),
-                ..Default::default()
-            },
         ]),
         resources: Some(ResourceRequirements {
             requests: Some(BTreeMap::from([
@@ -310,7 +309,6 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
             env_var("S3_REGION", &config.s3_region),
             env_var("S3_PREFIX", &format!("models/{}", params.job_id)),
             env_var("CALLBACK_ENDPOINT", &config.callback_endpoint),
-            env_var("MINIO_CA_CERT_PATH", "/etc/ssl/minio-ca/ca.crt"),
             env_var("RUST_LOG", "info"),
         ]),
         env_from: Some(vec![EnvFromSource {
@@ -333,12 +331,6 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
                 read_only: Some(true),
                 ..Default::default()
             },
-            VolumeMount {
-                name: "minio-ca".to_string(),
-                mount_path: "/etc/ssl/minio-ca".to_string(),
-                read_only: Some(true),
-                ..Default::default()
-            },
         ]),
         resources: Some(ResourceRequirements {
             requests: Some(BTreeMap::from([
@@ -438,14 +430,6 @@ pub fn build_job_spec(config: &DispatcherConfig, params: &TrainingJobParams) ->
             }),
             ..Default::default()
         },
-        Volume {
-            name: "minio-ca".to_string(),
-            config_map: Some(ConfigMapVolumeSource {
-                name: "minio-ca-cert".to_string(),
-                ..Default::default()
-            }),
-            ..Default::default()
-        },
     ];
 
     // -- Node selector ---------------------------------------------------------
@@ -679,14 +663,12 @@ mod tests {
         assert!(env_names.contains(&"S3_ENDPOINT"));
         assert!(env_names.contains(&"S3_PREFIX"));
         assert!(env_names.contains(&"CALLBACK_ENDPOINT"));
-        assert!(env_names.contains(&"MINIO_CA_CERT_PATH"));
 
-        // Sidecar volume mounts (output + binaries + minio-ca)
+        // Sidecar volume mounts (output + binaries)
         let sidecar_mounts = sidecar.volume_mounts.as_ref().unwrap();
-        assert_eq!(sidecar_mounts.len(), 3);
+        assert_eq!(sidecar_mounts.len(), 2);
         assert!(sidecar_mounts.iter().any(|m| m.name == "output"));
         assert!(sidecar_mounts.iter().any(|m| m.name == "binaries"));
-        assert!(sidecar_mounts.iter().any(|m| m.name == "minio-ca"));
 
         // -- Main container --
         let containers = &pod_spec.containers;
@@ -722,9 +704,9 @@ mod tests {
         assert!(mounts.iter().any(|m| m.name == "output" && m.mount_path == "/output"));
         assert!(mounts.iter().any(|m| m.name == "binaries" && m.mount_path == "/binaries"));
 
-        // -- Volumes (PVC + 2 emptyDir + ConfigMap) --
+        // -- Volumes (PVC + 2 emptyDir) --
         let volumes = pod_spec.volumes.as_ref().unwrap();
-        assert_eq!(volumes.len(), 4);
+        assert_eq!(volumes.len(), 3);
 
         let data_vol = volumes.iter().find(|v| v.name == "training-data").unwrap();
         assert_eq!(
@@ -737,12 +719,6 @@ mod tests {
 
         let binaries_vol = volumes.iter().find(|v| v.name == "binaries").unwrap();
         assert!(binaries_vol.empty_dir.is_some(), "binaries should be emptyDir");
-
-        let ca_vol = volumes.iter().find(|v| v.name == "minio-ca").unwrap();
-        assert_eq!(
-            ca_vol.config_map.as_ref().unwrap().name,
-            "minio-ca-cert"
-        );
     }
 
     #[test]
@@ -843,23 +819,25 @@ mod tests {
 
     #[test]
     fn test_from_env_defaults() {
-        // Clear env vars to test defaults (safe in single-threaded test).
+        // Set required env vars, clear optional ones to test defaults.
+        std::env::set_var("S3_ENDPOINT", "http://minio:9000");
+        std::env::set_var("TRAINING_RUNTIME_IMAGE", "test-runtime:latest");
+        std::env::set_var("CALLBACK_ENDPOINT", "http://callback:50053");
         std::env::remove_var("K8S_NAMESPACE");
-        std::env::remove_var("TRAINING_RUNTIME_IMAGE");
         std::env::remove_var("S3_BUCKET");
-        std::env::remove_var("S3_ENDPOINT");
         std::env::remove_var("BINARIES_BUCKET");
-        std::env::remove_var("CALLBACK_ENDPOINT");
+        std::env::remove_var("TRAINING_DATA_PVC");
+        std::env::remove_var("S3_REGION");
 
         let cfg = DispatcherConfig::from_env();
         assert_eq!(cfg.namespace, "foxhunt");
-        assert!(cfg.runtime_image.contains("foxhunt-training-runtime"));
+        assert_eq!(cfg.runtime_image, "test-runtime:latest");
         assert_eq!(cfg.data_pvc, "training-data-pvc");
         assert_eq!(cfg.binaries_bucket, "foxhunt-binaries");
         assert_eq!(cfg.s3_bucket, "foxhunt-models");
-        assert!(cfg.s3_endpoint.contains("minio.foxhunt.svc.cluster.local"));
+        assert_eq!(cfg.s3_endpoint, "http://minio:9000");
         assert_eq!(cfg.s3_region, "fr-par");
-        assert!(cfg.callback_endpoint.contains("ml-training-service"));
+        assert_eq!(cfg.callback_endpoint, "http://callback:50053");
     }
 
 }